L01-04 — Prove independent standards and rendering claims #18

Outcome

Map every supported PDF/X, PDF/A, signature, conversion, and fidelity claim to a separate oracle or named limitation.

Parent and boundary

Parent: #2. Owner: LoopLibCore. This issue owns one bounded slice of Evidence Core; consume accepted upstream contracts and keep PDF/verdict/publication authority with Core.

Acceptance

• Reported claims cite the exact output bytes and independent validator/version; unsupported claims remain visible.
• Failure case: Loop self-validation or a fast approximate canvas cannot establish print or standards correctness.

Required proof

Pinned corpus, independent reports, and cross-platform reproduction packet. Record the exact source SHA, test command or hosted run, fixture/artifact identity, and any skipped or unavailable lane. Run the repository's mapped proof and check-change gate for a PR.

Handoff

Record changed files, observed result, remaining risk, and a 1–3 sentence anti-slop review. Completion means acceptance evidence, not merely a merged implementation.

Sources

Approved master roadmap.